golang调用sdl2,键盘和鼠标事件

Posted 2022-06-18 福大大架构师每日一题

golang调用sdl2,键盘和鼠标事件

win10 x64下测试成功，其他操作系统下不保证成功。

采用的是syscall方式，不是cgo方式。

见地址

代码用golang编写。代码如下：

package main

import (
	"fmt"
	"github.com/moonfdd/sdl2-go/sdl"
	"github.com/moonfdd/sdl2-go/sdlcommon"
)

func main() 
	sdlcommon.SetSDL2Path("SDL2.dll")
	sdl.SDL_Init(sdl.SDL_INIT_VIDEO)
	window := sdl.SDL_CreateWindow("微信公众号：福大大架构师每日一题", sdl.SDL_WINDOWPOS_UNDEFINED, sdl.SDL_WINDOWPOS_UNDEFINED, 640, 480, sdl.SDL_WINDOW_OPENGL|sdl.SDL_WINDOW_RESIZABLE)
	if window == nil 
		fmt.Printf("Can't create window, err:%s", sdl.SDL_GetError())
		return
	
	renderer := window.SDL_CreateRenderer(-1, 0)
	if renderer == nil 
		return
	
	renderer.SDL_SetRenderDrawColor(255, 0, 0, 255)
	renderer.SDL_RenderClear()
	renderer.SDL_RenderPresent()
	var event sdl.SDL_Event
	for 
		event.SDL_WaitEvent()
		if event.Type == sdl.SDL_KEYDOWN 
			fmt.Println("键盘按下事件", event.ToSDL_KeyboardEvent().Keysym.Sym)
		 else if event.Type == sdl.SDL_MOUSEBUTTONDOWN 
			fmt.Println("鼠标按下事件")
		 else if event.Type == sdl.SDL_QUIT 
			fmt.Println("退出事件")
			break
		
	
	if renderer != nil 
		renderer.SDL_DestroyRenderer()
	

	window.SDL_DestroyWindow()
	sdl.SDL_Quit()

执行结果如下：